What is the cheapest airline that flies from Philadelphia to Great Falls?

Delta and United Airlines are the most popular carriers operating from Philadelphia to Great Falls

When did momondo last update prices for flights from Philadelphia Airport to Great Falls Airport?

Prices for flights from Philadelphia Airport to Great Falls Airport are updated daily.

How many operators does momondo search for flights from Philadelphia Airport to Great Falls Airport?

As of October 2026, there are 2 operators available to choose from for flights from Philadelphia Airport to Great Falls Airport.

How old do you have to be to fly from Philadelphia Airport to Great Falls Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Great Falls Airport.

What documentation or ID do you need to fly to Great Falls Airport?

The travel and health documents you'll need for your trip to Great Falls Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$200 Cheap Flights from Philadelphia to Great Falls in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 4:11 pmPHL Philadelphia-GTF Great Falls

11h 11m1 stop Seattle/Tacoma Intl

4:51 pm - 5:40 amGTF Great Falls-PHL Philadelphia

10h 49m1 stop Seattle/Tacoma Intl

$388Alaska Airlines

Wed, Dec 9 - Sat, Dec 12

7:10 am - 12:39 pmPHL Philadelphia-GTF Great Falls

7h 29m1 stop Salt Lake City

6:19 pm - 9:29 amGTF Great Falls-PHL Philadelphia

13h 10m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$394Delta

Wed, Dec 9 - Sat, Dec 12

9:43 am - 5:39 pmPHL Philadelphia-GTF Great Falls

9h 56m2 stops Detroit Metropolitan Wayne County Salt Lake City

6:19 pm - 9:29 amGTF Great Falls-PHL Philadelphia

13h 10m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$399Delta

Wed, Dec 9 - Sat, Dec 12

6:20 am - 5:39 pmPHL Philadelphia-GTF Great Falls

13h 19m2 stops Atlanta Hartsfield-Jackson Salt Lake City

6:19 pm - 9:29 amGTF Great Falls-PHL Philadelphia

13h 10m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$399Delta

Wed, Dec 9 - Sat, Dec 12

7:00 am - 4:13 pmPHL Philadelphia-GTF Great Falls

11h 13m1 stop Seattle/Tacoma Intl

4:55 pm - 5:55 amGTF Great Falls-PHL Philadelphia

11h 00m1 stop Seattle/Tacoma Intl

$418Alaska Airlines

Wed, Apr 7 - Sat, Apr 10

7:45 am - 1:49 pmPHL Philadelphia-GTF Great Falls

8h 04m1 stop Denver Intl

6:30 am - 3:46 pmGTF Great Falls-PHL Philadelphia

7h 16m1 stop Denver Intl

$458United Airlines

Wed, Nov 11 - Sat, Nov 14

7:02 am - 4:30 pmPHL Philadelphia-GTF Great Falls

11h 28m1 stop Seattle/Tacoma Intl

5:10 pm - 5:32 amGTF Great Falls-PHL Philadelphia

10h 22m1 stop Seattle/Tacoma Intl

$458Alaska Airlines

Fri, Nov 13 - Sat, Nov 14

7:02 am - 4:30 pmPHL Philadelphia-GTF Great Falls

11h 28m1 stop Seattle/Tacoma Intl

5:10 pm - 5:32 amGTF Great Falls-PHL Philadelphia

10h 22m1 stop Seattle/Tacoma Intl

$458Alaska Airlines

Tue, Nov 10 - Thu, Nov 12

10:54 am - 9:38 pmPHL Philadelphia-GTF Great Falls

12h 44m2 stops Chicago O'Hare Intl Denver Intl

2:45 pm - 11:39 pmGTF Great Falls-PHL Philadelphia

6h 54m1 stop Denver Intl

$464United Airlines

Wed, Nov 11 - Sun, Nov 15

10:30 am - 9:38 pmPHL Philadelphia-GTF Great Falls

13h 08m2 stops Washington, D.C. Dulles Intl Denver Intl

6:30 am - 3:46 pmGTF Great Falls-PHL Philadelphia

7h 16m1 stop Denver Intl

$464United Airlines

Wed, Nov 11 - Sat, Nov 14

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Delta flights from Philadelphia to Great Falls

Our best Delta deals on Philadelphia to Great Falls flight tickets

Delta

Dec 9

PHL7:10 amPhiladelphia

7h 29m

1 stop

GTF12:39 pmGreat Falls

Dec 12

GTF6:19 pmGreat Falls

13h 10m

2 stops

PHL9:29 amPhiladelphia

$394

Delta

Dec 9

PHL9:43 amPhiladelphia

9h 56m

2 stops

GTF5:39 pmGreat Falls

Dec 12

GTF6:19 pmGreat Falls

13h 10m

2 stops

PHL9:29 amPhiladelphia

$399

Delta

Nov 10

PHL7:15 amPhiladelphia

7h 26m

1 stop

GTF12:41 pmGreat Falls

Nov 15

GTF6:19 pmGreat Falls

9h 36m

1 stop

PHL5:55 amPhiladelphia

$423

Alaska Airlines flights from Philadelphia to Great Falls

Our best Alaska Airlines deals on Philadelphia to Great Falls flight tickets

Alaska Airlines

Dec 9

PHL7:00 amPhiladelphia

11h 11m

1 stop

GTF4:11 pmGreat Falls

Dec 12

GTF4:51 pmGreat Falls

10h 49m

1 stop

PHL5:40 amPhiladelphia

$388

Alaska Airlines

Apr 7

PHL7:00 amPhiladelphia

11h 13m

1 stop

GTF4:13 pmGreat Falls

Apr 10

GTF4:55 pmGreat Falls

11h 00m

1 stop

PHL5:55 amPhiladelphia

$418

Alaska Airlines

Nov 10

PHL7:02 amPhiladelphia

11h 28m

1 stop

GTF4:30 pmGreat Falls

Nov 14

GTF5:10 pmGreat Falls

10h 22m

1 stop

PHL5:32 amPhiladelphia

$458

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Wed 12/9

7:00 am-4:11 pm

1 stop11h 11m

Great Falls

Sat 12/12

4:51 pm-5:40 am

1 stop10h 49m

$388

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Wed 12/9

7:10 am-12:39 pm

1 stop7h 29m

Great Falls

Sat 12/12

6:19 pm-9:29 am

2 stops13h 10m

$394

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Wed 12/9

9:43 am-5:39 pm

2 stops9h 56m

Great Falls

Sat 12/12

6:19 pm-9:29 am

2 stops13h 10m

$399

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Wed 12/9

6:20 am-5:39 pm

2 stops13h 19m

Great Falls

Sat 12/12

6:19 pm-9:29 am

2 stops13h 10m

$399

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Wed 4/7

7:00 am-4:13 pm

1 stop11h 13m

Great Falls

Sat 4/10

4:55 pm-5:55 am

1 stop11h 00m

$418

Quickest round-trip

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Wed 11/11

7:45 am-1:49 pm

1 stop8h 04m

Great Falls

Sat 11/14

6:30 am-3:46 pm

1 stop7h 16m

$458

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Fri 11/13

7:02 am-4:30 pm

1 stop11h 28m

Great Falls

Sat 11/14

5:10 pm-5:32 am

1 stop10h 22m

$458

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Tue 11/10

7:02 am-4:30 pm

1 stop11h 28m

Great Falls

Thu 11/12

5:10 pm-5:32 am

1 stop10h 22m

$458

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Wed 11/11

10:54 am-9:38 pm

2 stops12h 44m

Great Falls

Sun 11/15

2:45 pm-11:39 pm

1 stop6h 54m

$464

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Wed 11/11

10:30 am-9:38 pm

2 stops13h 08m

Great Falls

Sat 11/14

6:30 am-3:46 pm

1 stop7h 16m

$464

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Great Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Great Falls?

The month of April is another great option to travel to Great Falls, with average flight prices from Philadelphia averaging around $372.

Can stopping save me money on Philadelphia to Great Falls flights?

You could potentially save up to 10% on your flight if you consider stops on a Philadelphia to Great Falls flight.

When to book flights from Philadelphia to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Great Falls according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Great Falls (PHL to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Great Falls

Best Price Found	$200
Fastest flight time	7h 18m
Direct flights	None

The best one-way flight to Great Falls from Philadelphia in the past 72 hours is $200. The best round-trip flight deal from Philadelphia to Great Falls found on momondo in the last 72 hours is $388.

The fastest flight from Philadelphia to Great Falls takes 7h 18m

There are no direct flights from Philadelphia to Great Falls. There are no popular flight routes from Philadelphia to Great Falls.

Search flight deals

Frequently asked questions about flying from Philadelphia to Great Falls

How far is Philadelphia to Great Falls by plane?
A flight from Philadelphia to Great Falls will travel around 1858.6 mi. Typically, this will take 7h 18m by plane in normal conditions.
When did momondo last update prices for flights from Philadelphia Airport to Great Falls Airport?
Prices for flights from Philadelphia Airport to Great Falls Airport are updated daily.
How many operators does momondo search for flights from Philadelphia Airport to Great Falls Airport?
As of October 2026, there are 2 operators available to choose from for flights from Philadelphia Airport to Great Falls Airport.
How old do you have to be to fly from Philadelphia Airport to Great Falls Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Great Falls Airport.
What documentation or ID do you need to fly to Great Falls Airport?
The travel and health documents you'll need for your trip to Great Falls Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Philadelphia to Great Falls?
momondo data reveals that the most frequently booked airline on the route from Philadelphia to Great Falls is United Airlines, representing 59% of all bookings. The subsequent popular airline is Delta at 41%.

Best airlines flying from Philadelphia to Great Falls

Compare and see reviews for airlines that fly from Philadelphia to Great Falls with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $273	Free Cancellation	Rating 7.8 8,694 reviews		Search Delta flights
United Airlines	PriceFrom $461	Free Cancellation	Rating 7.3 10,453 reviews		Search United Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Great Falls?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Great Falls from Philadelphia.

Can I find flights from Philadelphia to Great Falls with flexible booking policies on momondo?

Flights from Philadelphia to Great Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to Great Falls?

Once you have performed a search for Philadelphia to Great Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Great Falls right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Philadelphia to Great Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.